152 



UK APPr.K LEAF IlOl'PFR 



Franklin, in charge of our insectary and field work, was given this 

 problem, and took up the work upon Papaipcuui July 3rd, 1908. 

 During the season he has conducted sixty-three diiferent experiments 

 in laboratory and in our ex])erimental garden on this genus. He has 

 reared and determined the following species: 



FiK. 71). Stalk of GiMiit Hui'-eliler sliowlng cluster of eggs of P. nitcla at point 

 indiciiti'd byline. Original. 



P. nitcla ("iP... and the variety nchris ;'-'^ P. fiircata Smith, and an- 

 other common species, which, to all appearances, is P. catapliracta 

 Grote. Still another .species, not yet determined, reared from Burdock, 

 ajjpears to be entirely diiTerent from the above three. A larva of 

 this last species pui)ated August 13th, and the moth issued September 

 9th. 



*lf the rules of zoological nomeiiclatiire were strictly followed, nebrix sliould be re- 

 ferred to as the species, and iiilrla as the variety. ,1. B. Smith, liowever. claims that the 

 relationship Ix'tween tlie two forms i.s better expressed by treating iiitclti as the species, 

 and we have, therefore, followed the established precedent, leaving tliis change to 

 others. 



